Hydraulic control arrangement

Details Hydraulic control arrangement Hydraulic control arrangement

2005-07-06

2009-12-29

Leslie, Michael (Department: 3745)

Power plants

Pressure fluid source and motor

Having means controlling or attenuating shock vibration,...

Reexamination Certificate

active

07637103

ABSTRACT:
Disclosed is a hydraulic control arrangement for damping wagging vibrations, wherein during operation a hydraulic cylinder of a lifting equipment can be connected to a hydraulic accumulator via a damping valve arrangement. The damping valve arrangement comprises a nozzle valve arrangement with two different nozzle cross-sections, the larger of which is active when filling the hydraulic accumulator and the smaller of which is active during adaptation of the hydraulic accumulator to the load pressure of the hydraulic cylinder.

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